Retrieve a json listing main information about packages that have no maintainers

get_maintainerless_pkgs.bash

#!/usr/bin/env nix-shell
#!nix-shell -i bash -p curl jq brotli

url="https://channels.nixos.org/nixpkgs-unstable/packages.json.br"
curl -L "$url"           \
    | brotli -d --stdout \
    | jq '.packages[] | select(.meta.maintainers == []) | {     
    "pname": .pname,
    "system": .system,
    "version": .version,
    "description": .meta.description,
}' > no_maintainer.json